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SC400 rough idle, off idle fine, then doesnt start one morning

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Old 11-19-09, 09:33 AM
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Eclipsor00
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Default SC400 rough idle, off idle fine, then doesnt start one morning

I have a 92 Lexus SC400 with 220,000 miles. Car always ran perfectly and real strong. Then one cold morning I started it, I heard "something" and then the car rough idles. It runs extremely rich at idle, feels like its runing on less than 8 cylinders. No CEL comes up, nothing. I accelerate and its fine once its above 1300rpms, cruises fine. But as soon as idle comes it runs like its a few cylinders short.

Then I park it, and come back to it a few days later. Try to start it and I hear the starter "clang" as if tis trying to turn over but hit something stuck and not turn over. Try again a few times, it just clangs but doesnt start over.

Again no cel, I will be checking the battery to see if it doesnt have enough voltage, then going to the starter, but the fuel/idle issue couldnt be a starter, so it really makes me wonder if somethinhg happened? I dunno. Suggestions?
Old 11-19-09, 09:50 AM
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Nick T
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When was your last timing belt change ? Sort of sounds like the belt skipped a few teeth, then when you came back a few days later you may have dropped a valve.

Good luck
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